Graphing Circles

Go to this website and explore graphing circles interactively. Play around. by moving the points and you can see how the equation of the circle changes, helping you to understand how we came up with the formula.

Happy Pi Day

March 14th was a day just made for math people!

This may sound irrational but it has its own web page. Visit it and send someone a pi-card. Didn't know you could send pi thru the internet did you?

(Illustration from NCTM.org)

Geometric Transformations

Transformations are best understood if you can see what happens to a shape when you move it, reflect it or turn it.

Click on this link and play around with the different transformations to get a better understanding. You need Java on your computer to use it.

Graphing calculator

I've found a great new online graphing calculator. Its a lot easier to use than an earlier version I had posted so I have updated the side link as well.  You can do all the things we do in class by yourself at home by playing with it for a few minutes. It allows you to graph more than one line and then using the menu above the graph you can create a table and find intersection points. Use the online keyboard to type in your equations.


Click here and then pick "graphing calculator".

Online Textbooks

In case you missed an earlier posting, and needed to study for the upcoming regents exams, complete textbooks are available online:

Integrated Algebra

Geometry

Algebra2/Trig

Its Automatic...mathematic!

Relax this weekend with some hard core math rap!

Similar Triangles

 

Learn the differences between congruent and similar triangles in this video.